The movie actor (Brokeback Mountain, Source Code, Donnie Darko) admits he has an addiction to fitness, which includes cycling.
Gyllenhaal is frequently photographed on his road bike in both New York and California, and even took a Men's Journal reporter on a ride through the hills of Los Angeles for a feature story.
"I'm not really a gearhead," Gyllenhaal told Men's Journal. "With biking, the spirit of it is—whatever you can find."
The former lead singer of Talking Heads (the 1983 hit Burning Down the House was their biggest) is in the Rock 'n Roll Hall of Fame, but he's equally involved in cycling.
Byrne wrote the 2009 book Bicycle Diaries and has used the bike as his primary transportation around New York City for years. He even designed unique, art-like bike racks that were installed around New York (for example, a bike rack on Wall Street was shaped like a dollar sign).
"There's a certain amount of freedom involved in cycling," Byrne told The Guardian in 2009. "You're self-propelled and decide exactly where to go."cycling event.